dothan inc.'s stock has a 25% chance of producing a 44% return, a 50% chance of producing a 12% return, and a 25% chance of producing a -18% return. what is the firm's expected rate of return? do not round your intermediate calculations. a. 12.50% b. 12.88% c. 10.38% d. 15.50% e. 10.00%